Question

Identify invalid variable names from the following, give reasons for each –
Group, if, int, total marks, !_volume, Tag@, 9a, abc, S.I., total_strength

Answer 1

Answer:

if, int,total marks, !_volume,Tag@, 9a,S.I. are invalid.

Explanation:

if - it is a keyword.

int - it is a keyword.

total marks - has a space.

!_volume - has an invalid character -!

Tag@- has an invalid symbol.- @

9a - has a number.

S.I. - has dots.

Answer 2

Answer:

if  

int  

!_volume  

Tag@

9a

S.I.

Explanation: